Question: Tell me what human migration starts with the letter u.
Paraphrase: Tell me what the letter u begins with human migration.
SPARQL (Wikidata): SELECT DISTINCT ?sbj ?sbj_label WHERE { ?sbj wdt:P31 wd:Q177626 . ?sbj rdfs:label ?sbj_label . FILTER(STRSTARTS(lcase(?sbj_label), 'u')) . FILTER (lang(?sbj_label) = 'en') } LIMIT 25 
Answer: Ukrainians in Russia, Ukrainians in Russia, Ukrainians in Poland, Ukrainians in Poland, Ukrainian Argentine, Ukrainian Argentine, Ukrainian Brazilians, Ukrainian Brazilians, Uruguayans in Mexico, Uruguayans in Mexico, Uruguayans in Chile, Uruguayans in Chile, Ugandan migration to the United Kingdom, Ugandan migration to the United Kingdom, Ukrainians in Paraguay, Ukrainians in Paraguay, Uruguayan Australian, Uruguayan Australian, Uruguayans in Argentina, Uruguayans in Argentina